Parked my S type sport on gravelled park area at stables only to find car sank. Recently further gravel had been added. No we didn't do a wheel spin and spray every one. The staff at the stables were not big enough to push the heavy girl. Got the car mats out( not expensive ones).Moved the gravel and pushed mat under wheels. Gradually backed out with ease and free. :D .Cones up to stop further cars being trapped.

I am parked in gravel a at the moment in Keswick.  Not that deep but still difficult to manoeuvre.

 

On the steep hills up here they use 12 inch deep gravel in escape lanes to stop runaway lorries.

 

Peter.